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| author | Olga Kornievskaia <kolga@netapp.com> | 2015-11-24 13:29:42 -0500 |
|---|---|---|
| committer | Trond Myklebust <trond.myklebust@primarydata.com> | 2015-12-28 09:57:14 -0500 |
| commit | 9759b0fb1d202e6bc9bdab10612189abc9389df8 (patch) | |
| tree | 375d56a47f95ebe5dc66cbb3cc332708ccb7109b | |
| parent | 48c9579a1afe4315be4576ec4c0b24c2715da0e0 (diff) | |
| download | op-kernel-dev-9759b0fb1d202e6bc9bdab10612189abc9389df8.zip op-kernel-dev-9759b0fb1d202e6bc9bdab10612189abc9389df8.tar.gz | |
Adding tracepoint to cached open
Signed-off-by: Olga Kornievskaia <kolga@netapp.com>
Signed-off-by: Trond Myklebust <trond.myklebust@primarydata.com>
| -rw-r--r-- | fs/nfs/nfs4proc.c | 2 | ||||
| -rw-r--r-- | fs/nfs/nfs4trace.h | 39 |
2 files changed, 41 insertions, 0 deletions
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c index 492d303..e941261 100644 --- a/fs/nfs/nfs4proc.c +++ b/fs/nfs/nfs4proc.c @@ -1598,6 +1598,7 @@ _nfs4_opendata_to_nfs4_state(struct nfs4_opendata *data) if (!data->rpc_done) { state = nfs4_try_open_cached(data); + trace_nfs4_cached_open(data->state); goto out; } @@ -2015,6 +2016,7 @@ static void nfs4_open_prepare(struct rpc_task *task, void *calldata) } return; unlock_no_action: + trace_nfs4_cached_open(data->state); rcu_read_unlock(); out_no_action: task->tk_action = NULL; diff --git a/fs/nfs/nfs4trace.h b/fs/nfs/nfs4trace.h index 9058aec..8704372 100644 --- a/fs/nfs/nfs4trace.h +++ b/fs/nfs/nfs4trace.h @@ -473,6 +473,45 @@ DEFINE_NFS4_OPEN_EVENT(nfs4_open_reclaim); DEFINE_NFS4_OPEN_EVENT(nfs4_open_expired); DEFINE_NFS4_OPEN_EVENT(nfs4_open_file); +TRACE_EVENT(nfs4_cached_open, + TP_PROTO( + const struct nfs4_state *state + ), + TP_ARGS(state), + TP_STRUCT__entry( + __field(dev_t, dev) + __field(u32, fhandle) + __field(u64, fileid) + __field(unsigned int, fmode) + __field(int, stateid_seq) + __field(u32, stateid_hash) + ), + + TP_fast_assign( + const struct inode *inode = state->inode; + + __entry->dev = inode->i_sb->s_dev; + __entry->fileid = NFS_FILEID(inode); + __entry->fhandle = nfs_fhandle_hash(NFS_FH(inode)); + __entry->fmode = (__force unsigned int)state->state; + __entry->stateid_seq = + be32_to_cpu(state->stateid.seqid); + __entry->stateid_hash = + nfs_stateid_hash(&state->stateid); + ), + + TP_printk( + "fmode=%s fileid=%02x:%02x:%llu " + "fhandle=0x%08x stateid=%d:0x%08x", + __entry->fmode ? show_fmode_flags(__entry->fmode) : + "closed", + MAJOR(__entry->dev), MINOR(__entry->dev), + (unsigned long long)__entry->fileid, + __entry->fhandle, + __entry->stateid_seq, __entry->stateid_hash + ) +); + TRACE_EVENT(nfs4_close, TP_PROTO( const struct nfs4_state *state, |
